Rh(I)-Catalyzed Pauson−Khand Reaction and Cycloisomerization of Allenynes: Selective Preparation of Monocyclic, Bicyclo[<i>m</i>.3.0], and Bicyclo[5.2.0] Ring Systems
作者:Chisato Mukai、Fuyuhiko Inagaki、Tatsunori Yoshida、Katsuya Yoshitani、Yasuyuki Hara、Shinji Kitagaki
DOI:10.1021/jo050770z
日期:2005.9.1
Rhodium(I)-catalyzed PKR of allenynes was found to be applicable for constructing azabicyclo[5.3.0]decadienone as well as oxabicyclo[5.3.0]decadienone frameworks. In addition, a reliable procedure for constructing a 10-monosubstituted bicyclo[5.3.0]deca-1,7-dien-9-one ring system by the rhodium(I)-catalyzed PKR of allenynes was developed under the condition of 10 atm of CO. Investigation of the rhodium(I)-catalyzed
发现铑(I)催化的烯丙炔的PKR可用于构建氮杂双环[5.3.0]癸二烯酮和氧杂双环[5.3.0]癸二烯酮骨架。此外,在10 atm的条件下,开发了通过铑(I)催化的烯丙炔的PKR构建10-单取代的双环[5.3.0] deca-1,7-dien-9-环系统的可靠方法。氮气氛下铑(I)催化4-苯基磺酰氨基-2,3-dien-8-炔的铑(I)环异构化反应得到相应的环己烯衍生物,而C 1均一化的烯炔根据烯键末端的取代方式,生成环庚烯衍生物和/或双环[5.2.0]壬烯骨架。因此,导致了2- phenylsulfonylbicyclo [5.3.0]癸-1,7-二烯-9-酮(Pauson-Khand反应型产品),3-亚烷基-1的选择性形成起始allenynes和反应条件适当选择-苯基磺酰基-2-乙烯基环庚烯衍生物和双环[5.2.0]壬烯骨架。